package note1.object;

public class SpaceShipControls {

	//û��Ȩ�����η�Ĭ���ǰ����Ȩ��
	void up(){}
	void down(){}
	void left(){}
	void rigth(){}
	void forward(int i){System.out.println("�ɴ�����" + i);}
	void back(int i){System.out.println("�ɴ�����" + i);}
}
